Tube holder



FIG. 1 is a front elevation view of a tube holder showing my new design;

FIG. 2 is a right side elevation view thereof, the left side elevation view being identical;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof, the bottom plan view being identical;

FIG. 5 is a sectional view taken at line 5—5 in FIG. 1; and,

FIG. 6 is a perspective view thereof, showing its use in retaining a tube.

A bottom plan view of the holder is the same as the top plan view illustrated in FIG. 4. An elevational view from the other side of the tube holder is the same as that shown in FIG. 2.

The broken line showing of a tube in FIG. 6 depicts environment only and forms no part of the claimed design. 

The ornamental design for a tube holder, as shown and described. 